CN102346359A - Electronic device, connection detection method and connection detection system - Google Patents
Electronic device, connection detection method and connection detection system Download PDFInfo
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- CN102346359A CN102346359A CN2011102129189A CN201110212918A CN102346359A CN 102346359 A CN102346359 A CN 102346359A CN 2011102129189 A CN2011102129189 A CN 2011102129189A CN 201110212918 A CN201110212918 A CN 201110212918A CN 102346359 A CN102346359 A CN 102346359A
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- camera body
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- electronic equipment
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
- G03B17/14—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets interchangeably
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- Structure And Mechanism Of Cameras (AREA)
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- Exposure Control For Cameras (AREA)
- Accessories Of Cameras (AREA)
Abstract
Disclosed herein is an electronic device connected to a camera main body and having an actuator, the electronic device including: a detection terminal adapted to come into contact with a terminal used by the camera main body to detect the connection to the electronic device when the electronic device is connected to the camera main body; a detection section adapted to detect the voltage of the detection terminal; a connection detection section adapted to detect the connection status to the camera main body based on the change in the voltage detected by the detection section; and a control section adapted to control the operation of the actuator based on the connection or disconnection to or from the camera main body detected by the connection detection section.
Description
Technical field
The disclosure relates to electronic equipment, joint detection method and joint detection system; More specifically, relating to can fast detecting and electronic equipment, the joint detection method that this electronic equipment uses and the joint detection system with this electronic equipment of the disconnection of camera body.
Background technology
Some cameras use (for example, hereinafter referred to as the Japanese Patent Laid of patent documentation 1 is opened No.2007-101656) with the replacement camera lens that is connected to camera body.
In patent documentation 1 disclosed camera, when the replacement camera lens separates with camera body, at first break off all terminals except power supply terminal, then be that power supply terminal breaks off at last, so that the electrical connection between stabilized camera fuselage and the replacement camera lens.
On the other hand, have the camera that disposes as shown in Figure 1 and also be known as the connection state that detects the replacement camera lens.Camera 200 shown in Figure 1 comprises camera body 201 and is connected to the replacement camera lens 202 of camera body 201 in case of necessity.
When replacement camera lens 202 was attached to camera body 201, the power supply terminal 211 of camera body 201 contacted with detection terminal 232 with the power supply terminal 231 of replacement camera lens 202 respectively with detection terminal 212.
As power supply terminal 211 and power supply terminal 231 contacted results, dc voltage is offered replacement camera lens 202 from battery 213.
In the example depicted in fig. 1, testing circuit 221 comprises resistor 214-1 and 214-2, field effect transistor 215 and operational amplifier 216.
The output voltage of operational amplifier 216 (that is the input voltage of microcomputer 217) changes along with the variation of the grid voltage of the field effect transistor 215 that is connected to detection terminal 212.
Next the connection detection circuit to replacement camera lens 202 provides description.Replacement camera lens 202 comprises power supply terminal 231, detection terminal 232, resistor 233, off voltage detecting device 234, microcomputer 235, resetting voltage detecting device 236 and capacitor 237.
When off voltage detecting device 234 is confirmed input voltage greater than predetermined threshold voltage, off voltage detecting device 234 will be pulled to high level for the output voltage of microcomputer 235.If off voltage detecting device 234 is confirmed input voltage greater than predetermined threshold voltage, then off voltage detecting device 234 will be pulled down to low level for the output voltage of microcomputer 235.
On the other hand, replacement camera lens 202 uses resetting voltage detecting device 236 to detect the moment that microcomputer 235 resets.
Resetting voltage detecting device 236 detects the predetermined threshold voltage littler than off voltage detecting device 234 detected predetermined threshold voltages (like, the operating voltage of assurance).
Further, when resetting voltage detecting device 236 is confirmed input voltage greater than predetermined threshold voltage, resetting voltage detecting device 236 will be pulled to high level for the output voltage of microcomputer 235.If resetting voltage detecting device 236 is confirmed input voltage less than predetermined threshold voltage, then resetting voltage detecting device 236 will be pulled down to low level for the output voltage of microcomputer 235.
When microcomputer 235 detected the height conversion from the output voltage of resetting voltage detecting device 236, microcomputer 235 resetted.
When replacement camera lens 202 was connected to camera body 201, capacitor 237 was recharged with the dc voltage that provides from battery 213.Capacitor 237 only in the predetermined amount of time of replacing after camera lens 202 breaks off with camera body 201, will offer microcomputer 235 based on the energy of charge stored among it.
The sequential that Fig. 2 A～2D diagram replacement camera lens 202 in the past detects connection state.
The voltage of Fig. 2 A diagram power supply terminal 231.Constant dc voltage is offered power supply terminal 231 from the battery 213 of camera body 201, till camera body 201 breaks off.
When camera body 201 broke off, power supply terminal 231 was opened with power supply terminal in 211 minutes, allowed thus stored voltage in the capacitor 237 is offered power supply terminal 231.
In the capacitor 237 charge stored since microcomputer 235 for its consumption and reduce gradually.This causes the decline gradually that descends and supply with the voltage of microcomputer 235 thus gradually of the voltage of capacitor 237.
Physical connection between Fig. 2 B diagram camera body 201 and the replacement camera lens 202.In Fig. 2 B, low level representes to replace being connected of camera lens 202 and camera body 201, and the disconnection of high level indication replacement camera lens 202 and camera body 201.
The input voltage of Fig. 2 C diagram microcomputer 235 output voltage of off voltage detecting device 234 (that is, from).When replacement camera lens 202 broke off with camera body 201, the voltage of power supply terminal 231 descended as shown in Fig. 2 A gradually.
If the voltage of power supply terminal 231 is reduced to predetermined threshold voltage (that is, off voltage), then off voltage detecting device 234 will be a low level from hypermutation for the output voltage of microcomputer 235.
The variation that microcomputer 235 detects from the input voltage of off voltage detecting device 234 detects the disconnection of replacement camera lens 202 and camera body 201 thus.
Fig. 2 D is shown in the time period t of carrying out termination during it '.Detect to be disconnected at slave microcomputer 235 and carry out termination in the time period that detects resetting voltage.
As described with reference to Fig. 1, if the voltage of power supply terminal 231 is reduced to predetermined threshold voltage (that is, resetting voltage), then resetting voltage detecting device 236 will become low level from high level for the output voltage of microcomputer 235.
The variation that microcomputer 235 detects from the input voltage of resetting voltage detecting device 236 detects the decline for the voltage of resetting voltage thus.
Termination is designed to stop to be adapted for the actuator of the lens area that drives replacement camera lens 202 definitely.
Even making, this also can stop to replace camera lens 202 safely suddenly and under the situation of camera body 201 disconnections at replacement camera lens 202.
Summary of the invention
As stated, the variation that replacement camera lens 202 shown in Figure 1 detects the voltage of power supply terminal 231 detects the disconnection with camera body 201 thus.
As a result, break off and detect time of origin delay (time T in Fig. 2 A example shown) between the disconnection at the physics of replacement camera lens 202 and camera body 201.
The accessory (like, current available replacement camera lens) that is connected to camera body increases on complicacy.As a result, accomplish termination and spent long time.Further, as the result of the increase of accessory complicacy, the inconvenience such as fault more likely takes place under the situation of original inexpectancy operation.
Further again, the increase of accessory complicacy possibly cause being adapted for the bigger power consumption of the microcomputer of control fitting, this maybe be shown in Fig. 2 A the descending more fast of such causes voltage (that is, steeper slope).
Breaking off voltage afterwards with camera body 201 changes according to the power consumption of microcomputer.Therefore, the microprocessor that reset under the situation about descending the soonest of voltage need supposed.
Yet, because disconnection detection and the shorter time t between the beginning of resetting possibly be difficult to guarantee to be adapted for the needed time period t of termination of fair termination bigger accessory on complicacy '.
In view of above-mentioned, expectation detects the disconnection with camera body apace.
Electronic equipment according to the disclosure one mode is connected to camera body and has actuator.This electronic equipment comprises detection terminal, test section, joint detection part and control section.The terminal that detection terminal and camera body use contacts, so that when electronic equipment is connected to camera body, detect and being connected of said electronic equipment.The voltage of said detection terminal is detected in the test section.The joint detection part detects the connection state with said camera body based on the variation of the detected voltage in said test section.Control section based on said joint detection part detected with being connected or breaking off the operation of controlling said actuator of said camera body.
Said test section can comprise on-off element, and it is adapted for when electronic equipment and camera body are connected to each other and switches on or off, and cuts off or connects and when electronic equipment and camera body break off each other, be adapted for.
Said electronic equipment is the replacement camera lens, and said actuator can drive the camera lens of said replacement camera lens.
Said electronic equipment is a base of having settled camera body on it, and said actuator can shake drives camera fuselage on bat direction or the vergence direction.
Detect the voltage of detection terminal according to the joint detection method of mode of the present disclosure, said detection terminal contacts with the terminal that camera body uses, with being connected of detection when said electronic equipment is connected to camera body and said electronic equipment.Said joint detection method detects the connection state with said camera body based on the variation of detected voltage.Said joint detection method is connected or disconnection based on detected and said camera body, controls the operation of said actuator.
In mode of the present disclosure, the contacted detection terminal of terminal that uses with camera body is provided, when said electronic equipment is connected to camera body, to detect and being connected of said electronic equipment.Detect the voltage of said detection terminal, and, control the operation of said actuator based on being connected or disconnection of detected and said camera body.
In the joint detection system according to mode of the present disclosure, said camera body comprises second detection terminal and first detection terminal.Second detection terminal contacts with first detection terminal of electronic equipment.First test section is based on the variation of the voltage of said second detection terminal, and detection is connected with said electronic equipment.Said electronic equipment comprises actuator, first detection terminal, second test section, joint detection part and control section.The said electronic equipment of actuator.First detection terminal contacts with said second detection terminal of said camera body.The voltage of said first detection terminal is detected in second test section.The joint detection part detects the connection state with said camera body based on the variation of the detected voltage of said second detection part.Control section based on said joint detection part detected with being connected or breaking off the operation of controlling said actuator of said camera body.
In mode of the present disclosure, second detection terminal is provided in the camera body.Second detection terminal contacts with first detection terminal of electronic equipment, and has detected the voltage of second detection terminal.On the other hand, the actuator and first detection terminal are provided in the electronic equipment.The actuator electronic equipment.First detection terminal contacts with second detection terminal of camera body.Detected the voltage of first detection terminal, and based on the change-detection of detected voltage with the connection state of camera body.The operation of actuator is connected or disconnection and being controlled based on detected and camera body.
Mode of the present disclosure makes can fast detecting and the disconnection of camera body.
Description of drawings
Fig. 1 is the diagrammatic sketch of the configuration of diagram being suitable for the in the past dead circuit that detects replacement camera lens and camera body;
The sequential of Fig. 2 A～2D diagram replacement Shot Detection connection state in the past;
Fig. 3 is the diagrammatic sketch of diagram according to the configuration of the circuit that is suitable for the connection state between detection camera fuselage and the replacement camera lens of present embodiment;
Fig. 4 A and 4B are the front views of the diagram camera body and the configuration of the coupling part of replacement camera lens;
Fig. 5 is the block diagram of the lens driving ios dhcp sample configuration IOS DHCP partly of diagram replacement camera lens;
Fig. 6 is a diagrammatic sketch of describing the work of testing circuit when camera body is connected to each other with the replacement camera lens;
Fig. 7 is the diagrammatic sketch of the circuit arrangement of diagram camera body when camera body breaks off with the replacement camera lens each other;
Fig. 8 A～8C is the diagrammatic sketch that the diagram camera body detects the sequential of connection state;
Fig. 9 is the diagrammatic sketch of the circuit arrangement of diagram replacement camera lens when camera body breaks off with the replacement camera lens each other;
Figure 10 A～10E is the diagrammatic sketch of the sequential of diagram replacement Shot Detection connection state;
Figure 11 is a process flow diagram of describing the termination that microcomputer carries out; And
Figure 12 is the diagrammatic sketch of the configuration of diagram base.
Embodiment
[configuration of camera body 2 and replacement camera lens 3]
Fig. 3 is the diagrammatic sketch that diagram is suitable for detecting the configuration of the camera body 2 of forming camera 1 and the circuit of replacing the connection state between the camera lens 3.
At first the connection detection circuit to camera body 2 provides description.Camera body 2 comprises power supply terminal 11, detection terminal 12, battery 13, resistor 14-1 to 14-3, field effect transistor 15, operational amplifier 16 and microcomputer 17.
When replacement camera lens 3 was attached to camera body 2, power supply terminal 11 contacted with detection terminal 32 with the power supply terminal 31 of replacement camera lens 3 respectively with detection terminal 12.Result as power supply terminal 11 contacts with power supply terminal 31 supplies with replacement camera lens 3 with dc voltage from battery 13.
Next the connection detection circuit to replacement camera lens 3 provides description.Replacement camera lens 3 comprises power supply terminal 31, detection terminal 32, resistor 33-1 and 33-2, field effect transistor 34, operational amplifier 35, microcomputer 36, resetting voltage detecting device 37 and capacitor 38.
Should be noted that as after a while with reference to as described in Fig. 5, replacement camera lens 3 further comprises camera lens 62, driver 81 and actuator 82.Driver 81 drives camera lens 62 with actuator 82.
That is, testing circuit 41 comprises resistor 33-1 and 33-2, field effect transistor 34 and operational amplifier 35 as shown in the example of Fig. 3.
The variation that microcomputer 36 detects from the input voltage of operational amplifier 35 detects being connected or disconnection of replacement camera lens 3 and camera body 2 thus.
Resetting voltage detecting device 37 is connected to microcomputer 36 with parallel way, to detect the voltage of the microcomputer 36 that is used to reset through the voltage of keeping watch on power supply terminal 31.
Resetting voltage detecting device 37 detects the input voltage (that is, supplying with the supply voltage of microcomputer 36) of resetting voltage detecting device 37, to confirm whether input voltage has dropped to the resetting voltage as intended threshold level.
When resetting voltage detecting device 37 is confirmed this input voltage greater than resetting voltage, resetting voltage detecting device 37 will be pulled to high level for the output voltage of microcomputer 36.On the other hand, if resetting voltage detecting device 37 is confirmed this input voltage less than resetting voltage, then resetting voltage detecting device 37 will be pulled down to low level for the output voltage of microcomputer 36.
When microcomputer 36 detected the height conversion from the output voltage of resetting voltage detecting device 37, microcomputer 36 resetted.
The reset voltage level of resetting voltage detecting device 37 is set for the operating voltage of the assurance of the maximum power dissipation of microcomputer 36 through hypothesis.
When replacement camera lens 3 broke off with camera body 2, capacitor 38 was supplied with microcomputer 36 with energy in the section at the fixed time.Because the power consumption of microcomputer 36, therefore, the voltage of capacitor 38 reduced along with the time, finally reduced to zero.
Even under the situation of the unexpected termination of the supply of camera body 2, the energy that microcomputer 36 also utilizes capacitor 38 to supply with is accomplished termination at supply voltage.
Fig. 4 A and 4B are the front views of the diagram camera body 2 and the configuration of the coupling part of replacement camera lens 3.
The front view of the coupling part of Fig. 4 A diagram camera body 2.The a plurality of terminals that comprise power supply terminal 11 and detection terminal 12 are provided in the erecting frame 51 as the coupling part of camera body 2.
Fig. 4 B illustrates the front view of the coupling part of replacement camera lens 3.The a plurality of terminals and the camera lens 62 that comprise power supply terminal 31 and detection terminal 32 are provided in the erecting frame 61 as the coupling part of replacing camera lens 3.
When replacement camera lens 3 is attached to camera body 2, make the erecting frame 51 of camera body 2 contact with the erecting frame 61 of replacement camera lens 3.Then, the erecting frame 61 of replacement camera lens 3 rotates in a predetermined direction, will replace camera lens 3 thus and be attached to camera body 2.
A plurality of terminals on the camera body 2 to be to provide with the identical quantity of a plurality of terminals of replacement on the camera lens 3, wherein a terminal pairing on each terminal on the camera body 2 and the replacement camera lens 3.When replacement camera lens 3 was attached to camera body 2 through the erecting frame 61 that rotates replacement camera lens 3 in a predetermined direction, every pair terminal linked together, and sets up electric continuity thus.
When replacement camera lens 3 broke off with camera body 2, the erecting frame 61 of replacement camera lens 3 was rotating in the opposite direction with the side that is used for attached replacement camera lens 3.
Although should be noted that in the example shown in Fig. 4 A and the 4B, replacement camera lens 3 is attached or separate with camera body 2 through the erecting frame 61 that rotates replacement camera lens 3, and camera body 2 and the method for replacing the connection between the camera lens 3 are not limited thereto example.
[configuration of replacement camera lens 3]
Fig. 5 is the block diagram of ios dhcp sample configuration IOS DHCP of the drive part of the diagram camera lens 62 that is used to replace camera lens 3.
Next the performance that drives camera lens 62 to microcomputer 36 provides description.Microcomputer 36 comprises test section 101, communications portion 102 and control section 103.
Should be noted that the different masses of microcomputer 36 can be as required switching signal and data each other.
The test section 101 of microcomputer 36 is detected for the connection state of camera body 2 and the moment that resets based on the variation of the output voltage that comes self-detection circuit 41 and resetting voltage detecting device 37.Communications portion 102 is given an order to driver 81, controls the work of actuator 82 thus.Control section 103 microcomputer 36 that resets.
[work of the testing circuit 21 of camera body 2]
Fig. 6 is a diagrammatic sketch of describing the work of testing circuit 21 when camera body 2 is connected to each other with replacement camera lens 3.
Suppose the voltage of representing battery 13 with E, and represent the resistance of resistor 14-2,14-3 and 33-2 with R1, R2 and R3 respectively that then the grid voltage V1 of field effect transistor 15 is expressed by the following equality that illustrates (1).
Suppose that (that is, V1＜Vth), then the field effect transistor 15 as on-off element ends grid voltage V1 less than the threshold voltage vt h of field effect transistor 15.
Therefore, to operational amplifier 16 voltage E is provided from battery 13 via resistor 14-1.As a result, the input voltage of operational amplifier 16 is high (shown in Figure 6 is " H ").
This allows microcomputer 17 to detect the attached of replacement camera lens 3 and camera body 2.
Although should be noted that inverting amplifier as operational amplifier 16, the disclosure is not limited thereto example, as long as use the amplifier with similar performance.On the other hand, operational amplifier 16 is not requisite, as long as microcomputer 17 can detect the variation of the grid voltage of field effect transistor 15.
[work of the testing circuit 21 of the camera body 2 of disconnection]
Next provide description with reference to Fig. 7 to the work of the testing circuit 21 of the camera body 2 that breaks off.
When replacement camera lens 3 broke off with camera body 2, detection terminal 12 broke off with detection terminal 32.As a result, the grid voltage V2 of field effect transistor 15 is expressed by the following equality that illustrates (2).
According to equality 1 and 2, grid voltage V2 is greater than grid voltage V1 (that is V2＞V1).(that is, V2＞Vth) is then as field effect transistor 15 conductings of on-off element greater than the threshold voltage vt h of field effect transistor 15 to suppose grid voltage V2.
Because the source ground of field effect transistor 15, so the input voltage of operational amplifier 16 is low.As a result, the output voltage of operational amplifier 16 is high.
Therefore, the voltage that is sent to microcomputer 17 is for high.This allows microcomputer 17 to detect the disconnection of replacement camera lens 3 and camera body 2.As a result, image capture operation is under an embargo.
[camera body 2 is for the detection sequential of connection state]
Above-mentioned camera body 2 detects connection state with the sequential shown in Fig. 8 A～8C.
Fig. 8 A～8C is the diagrammatic sketch that diagram camera body 2 detects the sequential of connection state.
Physical connection between Fig. 8 A diagram camera body 2 and the replacement camera lens 3.In Fig. 8 A, low level representes to replace being connected of camera lens 3 and camera body 2, and high level representes to replace the disconnection of camera lens 3 and camera body 2.
Fig. 8 B illustrates the gate voltage level of field effect transistor 15.
When camera body 2 was connected to each other with replacement camera lens 3, grid voltage equaled V1 as as described in Fig. 6.When replacement camera lens 3 broke off, grid voltage equaled V2 (V1＜V2) as as described in Fig. 7.
Fig. 8 C diagram is sent to the input voltage of microcomputer 17 from testing circuit 21 (that is, operational amplifier 16).
When camera body 2 was connected to each other with replacement camera lens 3, input voltage was low as as described in Fig. 6.When replacement camera lens 3 broke off, input voltage was high as as described in Fig. 7.
When the connection state of replacement camera lens 3 becomes when breaking off from connection, the input voltage of microcomputer 17 also changes simultaneously.
Therefore, camera body 2 detects the change of being sent to the input voltage of microcomputer 17 from testing circuit 21, detects the disconnection with replacement camera lens 3 thus more apace.
[work of the testing circuit 41 of the replacement camera lens 3 of connection]
Next provide description with reference to Fig. 6 to the work of the testing circuit 41 of the replacement camera lens 3 that connects.
On the other hand, resistor 33-2 makes the one of which end be connected to the grid of detection terminal 32 and field effect transistor 34, and makes its other end ground connection.
The grid of the field effect transistor 34 of replacement camera lens 3 is connected to the grid of the field effect transistor 15 of camera body 2 via detection terminal 12 and 32.
Therefore, the grid voltage of the field effect transistor 34 of replacement camera lens 3 equals the grid voltage V1 of the field effect transistor 15 of camera body 2.
Suppose the threshold voltage V ' th (that is, V1＞V ' th) of grid voltage V1, then be used as field effect transistor 34 conductings of on-off element greater than field effect transistor 34.
Because the source ground of field effect transistor 34, so the input voltage of operational amplifier 35 is low.Because operational amplifier 35 constitutes inverting amplifier, so the output voltage of operational amplifier 35 is high.
Therefore, the voltage that is sent to microcomputer 36 is for high.As a result, microcomputer 36 detects the attached of replacement camera lens 3 and camera body 2.
Although should be noted that inverting amplifier as operational amplifier 35, the disclosure is not limited thereto example, as long as use the amplifier with similar performance.On the other hand, operational amplifier 35 is not requisite, as long as microcomputer 36 can detect the variation of the grid voltage of field effect transistor 34.
[work of the testing circuit 41 of the replacement camera lens 3 of disconnection]
Next provide description with reference to Fig. 9 to the work of the testing circuit 41 of the replacement camera lens 3 that breaks off.
When replacement camera lens 3 broke off with camera body 2, the grid of field effect transistor 34 was via resistor 33-2 ground connection.As a result, grid voltage is zero.
Because the grid voltage of field effect transistor 34 is zero, it is lower than threshold voltage V ' th (that is, V ' th＞0)), so field effect transistor 34 ends.
Therefore, voltage is sent to operational amplifier 35 via capacitor 38 with resistor 33-1.As a result, the input voltage of operational amplifier 35 is high (shown in Figure 9 is " H ").
Because the input voltage of operational amplifier 35 is high, so its output voltage is low (shown in Figure 9 is " L ").Therefore, the input voltage that is sent to microcomputer 36 is low.As a result, microcomputer 36 detects the disconnection of replacement camera lens 3 and camera body 2.
[replacement camera lens 3 is for the detection sequential of connection state]
Above-mentioned replacement camera lens 3 detects connection state with the sequential shown in Figure 10 A～10E.
Figure 10 A～10E is the diagrammatic sketch that diagram replacement camera lens 3 detects the sequential of connection state.
Figure 10 A diagram is supplied with the voltage of microcomputer 36.
When replacement camera lens 3 was connected to camera body 2, dc voltage E supplied with replacement camera lens 3 via power supply terminal 11 and 31 from the battery 13 of camera body 2 as as described in Fig. 6.
When camera body 2 breaks off, the energy of being stored in the capacitor 38 is provided as as described in Fig. 9.
In the capacitor 38 storage energy mainly due to microcomputer 36 for its consumption and reduce gradually.The decline gradually that this causes capacitor 38 to supply with the voltage of microcomputer 36.This situation is illustrated among Figure 10 A.
On the other hand, reduce to predetermined resetting voltage if supply with the voltage of microcomputer 36, then resetting voltage detecting device 37 will be changed into low level from high level for the output voltage of microcomputer 36.
The variation that microcomputer 36 detects from the input voltage of resetting voltage detecting device 37 detects the decline for the service voltage of resetting voltage thus.At this moment, microcomputer 36 resets.
Figure 10 B illustrates the physical connection between camera body 2 and the replacement camera lens 3.In Figure 10 B, low level representes to replace being connected of camera lens 3 and camera body 2, and high level representes to replace the disconnection of camera lens 3 and camera body 2.
Figure 10 C illustrates the gate voltage level of field effect transistor 34.
When camera body 2 was connected to each other with replacement camera lens 3, grid voltage equaled V1 as as described in Fig. 6.When camera body 2 broke off, grid voltage equalled zero as as described in Fig. 9.
Figure 10 D illustrates the input voltage of delivering to microcomputer 36 from testing circuit 41 (that is, operational amplifier 35).
When camera body 2 was connected to each other with replacement camera lens 3, input voltage was high as as described in Fig. 6.When camera body 2 broke off, input voltage was low as as described in Fig. 9.
Figure 10 E illustrates the time period t of carrying out termination ' 1.Detect to be disconnected in the time period t 1 that detects resetting voltage at slave microcomputer 36 and carry out termination with camera body 2.
As stated, the voltage that testing circuit 41 detects detection terminal 32, rather than the voltage of power supply terminal 31 detect the disconnection with camera body 2 thus more apace.This makes ' 1 that can prolong the time period t that is used for termination accomplishes termination assuredly.
Further, use and camera body 2 employed detection terminal 12 contacted detection terminals 32, to detect connection state.As a result, need not add any new terminal, make testing circuit 41 can be applicable to the camera type of bigger quantity thus, and allow to incorporate connection detection circuit into lower cost.
[termination]
Figure 11 is a process flow diagram of describing the termination that microcomputer 36 carries out.
At step S1, the variation that voltage is detected in the test section 101 of microcomputer 36.That is, the output of the testing circuit 41 shown in the 101 watch circle 10D of test section detects the height transformation for the input voltage of microcomputer 36 thus.
When the variation that detects voltage at step S1 (that is, the disconnection of replacement camera lens 3 and camera body 2), communications portion 102 will be sent to driver 81 in order to the order that stops actuator 82 at step S2.
In response to ceasing and desisting order, driver 81 stops actuator 82.This feasible unexpected and inconvenient operation that can avoid camera lens 62.
At step S3, the resetting voltage that microcomputer 36 is detected in test section 101.
That is, resetting voltage detecting device 37 is kept watch on the supply voltage of supplying with microcomputers 36, and exports low-voltage to microcomputer 36 at supply voltage during less than resetting voltage.
At step S4, control section 103 resets microcomputer 36.After the processing in step S4, the termination of replacement camera lens 3 is accomplished.
As stated, microcomputer 36 detects the variation (that is, with the disconnection of camera body 2) of input voltage more apace, more positively stops the operation of actuator 82 thus.
Although should be noted that inverting amplifier as operational amplifier 16 and 35, in-phase amplifier (one or more) can be used as in operational amplifier 16 and 35 one or both.On the other hand, the conducting of field effect transistor 34 and cut-off state are opposite between during with the use p channel transistor when using the N channel transistor.
Further; Although provided description as the electronic equipment that is connected to camera body 2 in the present embodiment to replacement camera lens 3, the electronic equipment that is connected to camera can be the support of camera body is set and be suitable for shake clap or vergence direction on perhaps other electronic equipments of base of mobile camera fuselage 2.
Figure 12 is the diagrammatic sketch of diagram as the configuration of the base 120 of the electronic equipment that is connected to camera body 2.Base 120 is connected to the bottom of camera body 2 via coupling part 121.
In the present embodiment, base 120 has identical assembly with replacement camera lens 3 shown in Figure 3.Be connected to the camera body 2 of base 120 and have identical assembly with the camera body 2 shown in Fig. 3, and with the components apart of base 120.Yet, should be noted in the discussion above that battery 13 and microcomputer 17 share between base 120 and camera body 2.
On the other hand, the actuator of base 120 is such by microcomputer and driver control under the situation as shown in Figure 5.Yet, should be noted in the discussion above that actuator camera body 2 (that is, camera 1) rather than camera lens 62, it is attached with it to replace camera lens 3 simultaneously.
Should be noted in the discussion above that the camera with the fixed lens that can not be replaced certainly places on the base 120, and controlled in an identical manner.
As stated, the disclosure can be applicable to such electronic equipment: it has gone into actuator, and is suitable for when electronic equipment and camera body disconnection, stopping actuator.
On the other hand, term " system " refers to the whole device of being made up of a plurality of equipment and part.
It will be understood by those of skill in the art that according to designing requirement and other factors various modifications, combination, part combination and change to occur, as long as it is in the scope of accompanying claims or its equivalents.
The disclosure comprises and on the July 28th, 2010 of relevant theme of disclosed theme in the japanese priority patent application JP 2010-169239 that Jap.P. office submits to, and its full content mode by reference is incorporated in this.
Claims (6)
1. electronic equipment that is connected to camera body and has actuator, this electronic equipment comprises:
Detection terminal, the terminal that it is adapted for camera body uses contacts, so that when electronic equipment is connected to camera body, detect and being connected of said electronic equipment;
The test section, it is adapted for the voltage that detects said detection terminal;
The joint detection part, it is adapted for the variation based on the detected voltage in said test section, detects the connection state with said camera body; And
Control section, its be adapted for based on said joint detection part detected with said camera body be connected and break off in one control said actuator operation.
2. electronic equipment as claimed in claim 1, wherein,
Said test section comprises:
On-off element, it is adapted in connecting and cutting off when electronic equipment and camera body are connected to each other, and when electronic equipment and camera body break off each other, be adapted for cut off and connection in one.
3. electronic equipment as claimed in claim 2, wherein
Said electronic equipment is the replacement camera lens, and
The camera lens of the said replacement camera lens of said actuator.
4. electronic equipment as claimed in claim 2, wherein
Said electronic equipment is a base of having settled camera body on it,
Said actuator is the drives camera fuselage on shaking a direction of clapping in direction and the vergence direction.
5. joint detection method that is connected to camera body and has the electronic equipment of actuator, this joint detection method comprises:
Detect the voltage of detection terminal, said detection terminal is adapted for the terminal that uses with camera body and contacts, when said electronic equipment is connected to camera body, to detect and being connected of said electronic equipment;
Based on the variation of detected voltage, detect connection state with said camera body; And
Based on detected and said camera body be connected and break off in one, control the operation of said actuator.
6. joint detection system that is used for the connection between detection camera fuselage and the electronic equipment,
Said camera body comprises:
Second detection terminal, it is adapted for first detection terminal of electronic equipment and contacts; And
First test section, it is adapted for the variation based on the voltage of said second detection terminal, and detection is connected with said electronic equipment,
Said electronic equipment comprises
Actuator, it is adapted for and drives said electronic equipment;
First detection terminal, it is adapted for said second detection terminal of said camera body and contacts;
Second test section, it is adapted for the voltage that detects said first detection terminal;
The joint detection part, it is adapted for the variation based on the detected voltage of said second detection part, detects the connection state with said camera body; And
Control section, its be adapted for based on said joint detection part detected with said camera body be connected and break off in one control said actuator operation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-169239 | 2010-07-28 | ||
| JP2010169239A JP2012033999A (en) | 2010-07-28 | 2010-07-28 | Electronic apparatus, connection detection method, and connection detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102346359A true CN102346359A (en) | 2012-02-08 |
Family
ID=45526829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102129189A Pending CN102346359A (en) | 2010-07-28 | 2011-07-28 | Electronic device, connection detection method and connection detection system |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US8600225B2 (en) |
| JP (1) | JP2012033999A (en) |
| CN (1) | CN102346359A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109976085A (en) * | 2017-12-27 | 2019-07-05 | 韩国以事美德有限公司 | Camera model check device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2015252780A1 (en) * | 2014-05-02 | 2016-10-13 | Wolfcom Enterprises | System and method for body-worn camera with re-connect feature |
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| JP2000047308A (en) * | 1998-07-31 | 2000-02-18 | Kyocera Corp | Attachment detector for camera accessory |
| US6341902B1 (en) * | 1997-12-05 | 2002-01-29 | Asahi Kogaku Kogyo Kabushiki Kaisha | Photographic lens recognition system for a camera body |
| CN1761910A (en) * | 2003-04-08 | 2006-04-19 | 奥林巴斯株式会社 | Lens exchange type camera system |
| JP2008219369A (en) * | 2007-03-02 | 2008-09-18 | Canon Inc | Electromotive camera platform cradle and simplified monitoring camera system |
| CN101393377A (en) * | 2007-09-21 | 2009-03-25 | 佳能株式会社 | Lens apparatus and camera |
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| US4427280A (en) * | 1981-02-24 | 1984-01-24 | Canon Kabushiki Kaisha | Auxiliary power source device for motor driven camera |
| US5463436A (en) * | 1989-11-17 | 1995-10-31 | Minolta Camera Kabushiki Kaisha | Remote controllable camera system |
| EP0982937B1 (en) * | 1990-10-15 | 2006-11-29 | Canon Kabushiki Kaisha | Image pickup apparatus provided with interchangeable lenses |
| JP3253168B2 (en) * | 1993-04-01 | 2002-02-04 | キヤノン株式会社 | Lens barrel |
| JP3306358B2 (en) * | 1997-11-05 | 2002-07-24 | 旭光学工業株式会社 | Data transfer device and camera |
| JP4477313B2 (en) * | 2003-04-08 | 2010-06-09 | オリンパス株式会社 | Interchangeable lens camera system |
| JP2007101656A (en) | 2005-09-30 | 2007-04-19 | Fujifilm Corp | Electronic device system and electronic device |
| JP5115139B2 (en) * | 2007-10-17 | 2013-01-09 | ソニー株式会社 | Composition determination apparatus, composition determination method, and program |
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2010
- 2010-07-28 JP JP2010169239A patent/JP2012033999A/en not_active Withdrawn
-
2011
- 2011-07-13 US US13/181,580 patent/US8600225B2/en active Active
- 2011-07-28 CN CN2011102129189A patent/CN102346359A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6341902B1 (en) * | 1997-12-05 | 2002-01-29 | Asahi Kogaku Kogyo Kabushiki Kaisha | Photographic lens recognition system for a camera body |
| JP2000047308A (en) * | 1998-07-31 | 2000-02-18 | Kyocera Corp | Attachment detector for camera accessory |
| CN1761910A (en) * | 2003-04-08 | 2006-04-19 | 奥林巴斯株式会社 | Lens exchange type camera system |
| JP2008219369A (en) * | 2007-03-02 | 2008-09-18 | Canon Inc | Electromotive camera platform cradle and simplified monitoring camera system |
| CN101393377A (en) * | 2007-09-21 | 2009-03-25 | 佳能株式会社 | Lens apparatus and camera |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109976085A (en) * | 2017-12-27 | 2019-07-05 | 韩国以事美德有限公司 | Camera model check device |
Also Published As
| Publication number | Publication date |
|---|---|
| US8600225B2 (en) | 2013-12-03 |
| US20120027396A1 (en) | 2012-02-02 |
| JP2012033999A (en) | 2012-02-16 |
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Application publication date: 20120208 |